Research Projects

Early Stages of High-mass Star Formation

Magnetic Fields in High-mass Star Formation

Binary Formation, Accretion Disks, Infall Streamers

Origin of Stellar Masses, Core Mass Function

Initial Physical/ Chemical Conditions of High-mass Star Formation

The MagMaR survey is designed to elucidate the role of the magnetic field in the formation process of high-mass stars. We use ALMA to observe linearly polarized dust continuum and molecular line emission from 30 high-mass star-forming regions in a range of evolutionary stages (same target list as DIHCA). Single-pointing observations at 250 GHz (1.2 mm) provide the magnetic field morphology at ~0.3" resolution (∼1000 au, at the average source distance).

Publications

MagMaR I. Linear Polarized Imaging of the Ultracompact H II Region G5.89-0.39                             Fernandez-Lopez, Sanhueza et al. (2021)

MagMaR II. Tomography through Dust and Molecular Line Polarization in NGC 6334I(N) Cortes, Sanhueza et al. (2021)

Gravity-driven Magnetic Field at 1000 au Scales in High-mass Star Formation Sanhueza et al. (2021)

MagMaR III. Resisting the Pressure, Is the Magnetic Field Overwhelmed in NGC6334I?            Cortes et al. (2024)

Unveiling an Hourglass Magnetic Field in G333.46–0.16 Using ALMA Saha, Sanhueza et al. (2024)

MagMaR IV. Tracing the Magnetic Fields in the O-type Protostellar System IRAS 16547–4247            Zapata et al. (2024)

MagMaR V. The Magnetic Field at the Onset of High-mass Star Formation Sanhueza et al. (2025)